Finding the Fourth Proportional to 22,485.80, 31,025.22 and 13,048.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,485.80 : 31,025.22 = 13,048.76 : x
2. Step 2: Convert to fraction form
   22,485.80/31,025.22 = 13,048.76/x
3. Step 3: Cross multiply
   22,485.80x = 31,025.22 × 13,048.76
4. Step 4: Simplify right side
   22,485.80x = 404,840,649.73
5. Step 5: Solve for x
   x = 404,840,649.73/22,485.80
6. Step 6: Final answer
   x = 18,004.28